Investigations

Alternator failure

NHTSA Preliminary Evaluation PE14022 — closed, opened 2014-07-22 and involving the DODGE CHARGER.

PE14022 Preliminary Evaluation Closed

Vehicle: DODGE CHARGER View model page

NHTSA investigation PE14022 is a Preliminary Evaluation opened on 2014-07-22 and currently closed. The subject of record is DODGE CHARGER, which places this file inside the Office of Defects Investigation queue for DODGE. Latest activity on this investigation was logged on 2014-11-06 — NHTSA updates that field whenever an Information Request goes out, a supplement is filed, or a status change is recorded in the public docket.

A Preliminary Evaluation like PE14022 is the entry point of the federal defect-investigation process. NHTSA engineers scan complaint databases, field reports, and manufacturer data to decide whether an Engineering Analysis is warranted, whether a voluntary recall is already sufficient, or whether the pattern does not rise to a defect finding.

Investigators summarized the matter as follows: "On July 22, 2014, the Office of Defects Investigation (ODI) opened PE14-022 to investigate 14 complaints (VOQs) alleging incidents of alternator failure resulting in engine stall while driving in model year (MY) 2011 thr..." Investigations are the early-warning layer of the federal auto-safety system, sitting upstream of formal recalls and defect orders. Whether this one closes without action or escalates into an Engineering Analysis, the full history stays in the ODI archive so researchers, litigators, and buyers can pull the paper trail at any time. Related DODGE files, listed below, give context on whether this is an isolated concern or part of a broader pattern across the brand.

Status
Closed
Type
Preliminary Evaluation
Opened
2014-07-22
Latest Activity
2014-11-06

Investigation Summary

On July 22, 2014, the Office of Defects Investigation (ODI) opened PE14-022 to investigate 14 complaints (VOQs) alleging incidents of alternator failure resulting in engine stall while driving in model year (MY) 2011 through 2012 Dodge Charger vehicles. The MY 2011 through 2012 Dodge Charger vehicles were sold with three different engine options: 1) 3.6L V6 (VIN8 = G), 88,766 vehicles; 2) 5.7L V8 (VIN8 = T), 38,615 vehicles; and 3) 6.4L V8 (VIN8 = J), 2,406 MY 2012 vehicles. The 14 VOQs identified in the PE14-022 opening resume involve 13 vehicles with 3.6L V6 engines and 1 vehicle with unknown engine (no VIN provided). In an October 7, 2014 letter to NHTSA, Chrysler described a safety defect condition that could result in rapid alternator failure having limited or no detection in approximately 434,581 MY 2011 through 2014 Chrysler 300, Dodge Charger, Dodge Challenger, Dodge Durango and Jeep Grand Cherokee vehicles equipped with 3.6L engines and 160 amp alternators (NHTSA Recall No. 14V-634, Chrysler P60). The subject alternators are used in vehicles equipped with 3.6L V6 engines and without towing packages. According to Chrysler, the silicone diodes in the alternator rectifier bridge may experience thermal fatigue due to cyclic loading from the Electric Hydraulic Power Steering (EHPS) system, eventually resulting in no output, reduced output, or a fully shorted to ground condition. These failure modes vary in their time to failure and warning to the driver. Depending on the failure mode and timing, system voltage may drop to critically low levels, disabling systems such as the Anti-lock Brake System/Electronic Stability Control, Engine Control Module/Central Body Controller, or a total vehicle electrical system shut down (in the event of a short to ground failure mode). Analysis of complaints to ODI and Chrysler identified a total of 146 incidents of alternator failure resulting in engine stall while driving in MY 2011 through 2012 Dodge Charger vehicles, including

About This Investigation Type

A Preliminary Evaluation (PE) is the first phase of NHTSA's investigation process. It is opened when the agency identifies a potential safety defect pattern, usually triggered by consumer complaints, manufacturer reports, or field monitoring. During a PE, NHTSA gathers information to determine whether a formal engineering analysis is warranted.

Other DODGE Investigations

Data from NHTSA Office of Defects Investigation. Cross-references: NHTSA recall campaign API and NHTSA FARS where fatality records overlap. PlainCars does not rate or recommend vehicles. Learn more.